Inner arch for pneumatic tires



May 1&9, 925.

W. J. P. MOORE INNER ARCH FOR PNEUMATIC TIRES Filed April 9. 1924 INVENTOR v @mount ci? @vant 'the in cui@ of jmmczmfc o? c, By so dining maif# l wams Wham piccd bw meen thc iimc' im@ and the mmm lriick lips a.,m oppsii@ sides circula? opening 2 in sims, emms in eiecz, :m iw cimm'ch m" sie@ having; the @mamme edges :.ivasi'img mi vih@ italici sidi@0f the sho@ im' @my aissiifcd new the has@ of the tim Tam aii' picssuccWhin inname tub@ mnd@ Hatten h@ @ich where it is thin new the amici' and@was inis fixbc sind @kistic arch "co ha silighity dep' and. causa@ 'theMimi @figes 0'? the @ich ik@ mw@ ouzwairdily and fno pi'ess hardsiga/ing@ @ha mi the casing md iihiiS @lightly @zi-mim ich@ casingfowbwwrciy foi.' th@ dsmm@ @if im@ bm@ fen site of the moin This sligghiexzension or deiieetion is gi'enizesi; nl ine iop of the hose of iiiesich whei'e shoe is the hinnes. enti gginfiueily deeneeses iov-Jeni, heWheie site shoeis eonsioemiiiy ihielun.

brief inspection coni/in s us once i ine ifueiei snhiiity any pneuinzwiobiz-e anni, neeven' isteiei movenieni; is neeesssiy lo nischenieniiy'hold in e iii-1n posiion inteinnlly hoi'zh of the inside inclinededges: of the shoe slightly above she iluso and pievent them from movingtoward he @entre oi' the iie; for, assumingr the tendency is to movefrom lef@ io right, it is evident die iei silie must be heid endpevenlefi 'from going, and ii' his is dene, fue righi; side is alsopi'evented i'oni tfnovings snol vice weise..

To eiiieousiiy n eonipiish his li have. oonceivefi ine plan or'ieconstneing 'he oiclineng; einsio iiap hy arranging :L

meiniiei which is s flop in en invei'tei 'posiiona being an inveiieei Uo1* 'if und iliioiiening i' e ille huso poi'l'ions, 4242 ieming isi'iinneiv et el, so he 'ehe inweidiy-inclined edges of the iips o, a,oi' the shoe, and having the inuei tuhe resting on iie uppei' sifie ofthe puri 4b of the neii or Fiep? iiini, is io say? iive position 'he l"insi'y flap occupies et when "fhe meh is in iiiis posi iioin one Sifeof yQhe iiexihle innei' iuiie i nili be piessed in.a so Hun" neioss-seeiion of seid iuhe :ai: @his time will he m'eslon'-shnpml orseani-eireuiu5 see lilgui(` ri'he nii' il new sui'e in iuiie i willinon' :iet lo compress the l :intl press :Elie omis fi firmly againstsich e ''ne shoe., snrl his pressure inuy exi-emi f'imn iiie base of iheshoe Io any desiieil gminiJ above the buse. so :1s io give groei,insel-ul. sabiiity ico the ioase oi' the-tire, so 'that nn excessive an"nfessui'e is not necessary lo improve its lnfeisi slzihiiity. and chelowest nii1 plessi-ne possi'oie can loo eni-iefl giving lle maximum of(inflection lesirerl *for easy siding.

i pei'ernbly forni :1 depressed section il in the :web i ai: the pointwhere the vulve (levice is aieehefi io ihe innein iube, see Fig? ure1i., and adjoining the opening f) in he sreh where ihe veine stem 8passes through the srch; and ihis keeps ihe vaive stem head plate 6 andnut T iloni injuring the outer half of the inner tube in euse ofabnormal deflection i' complete deiation.

It will loe borne in mind ihe. the carrying capacity of any pneumatictire is based om tirely on the Widh or midcross section of thesuspending air eolunml` always assuming a given percenisge of no1-maldeeotion and the same Wheel diameter; theefore the messes it ioiins an,'aieln with iis exieme ends in iesiing .on

in the seine Tein-y heoreisioui om?? e 4ese the fieileeti nini i.'gnofiucing e* n iii-o so eons'iuie. sin?! sniiilisa en@ und time wiiiwiih fieiieeions iN/believen norme gy oe iixeel. up

on is imniseri i pressure smi ifoiunie of nii if. imi e is @also nl neysH' oonstanni,q Oris n :ni cieieeion (loes not effect this nii' .n'allumeof nii pressure., es the tire easing only changes its shape end ismerely distoieah anni is neither compressed noi: sebehei. inet the sirprersuie must elw?, fs he nhsolueiy 1he seme esem/Where in like innenigui'ie..

The i'esuia inei'eoi-'e i having the won oi i'lsp is, that in iiiie of:any tiene Wyse of side strain being' iii-ought upon iiie held from flewig." inwmiiN :mii

iiie opposite eeiiei isterniig vey oonsilie :foie ciegiee oi nmoun vofsemi sabiiiy is the compie@ tine: Wheie normally, with oni iiis :umh7only the hielmess of ehe sirio wail en@ i'lie sie pessuie p eveifiis ihetire *from having); lzioiei moiion. 'Even with ihe high sii' p'essmes neesiiieoi in heavy pneumu'iie faire @asino 'i isi-emi stability is notsufficient emi pressure is de m'ensml "shis ininisl s may becomemw'iicnliy nohing, y. ease of u flo ils'iefl tire. ii'fiih the ion-e'ni'essuies now 'being eui'ied. on ille ouiefi o1: soez1lle l imlioonsilos, any ii-e's-i stnhiliizy so impaiiecl to the (.iie hy the sinpi'essm'e is com'esponeiingly reduced one inni, end ii', hommesneeessnzy lio *provhle other moans im' giving the nneumu-io Bbise nheneeessni-y infermi'siniiiiiys end when pievieie in ishe form of myiifnnoveel srch oi stay piece, lhis con he :lone wiiixout unnecessarycom plieziiion o1' expense.

The supporting' flan o :n'eh has n secund- :n-y Junefion in hnl. ii, canoe so shaped as io not io linnn*J the maximum deflection of the tires inthe event of the tire going;r over any high and hsici subsesnee, such asthe edge of the ens-b, it will entiiely prevent sin;

l ai

tire Walls 'oin being jammed down on to he lil@ tire, the deflated tirewill press uon the elastic flap or arch and the tire will unction as acushion tire for an indefinite period or at least until arrival atdestination without causing damage to the shoe or inner tube, andentirely prevents the necessity for stop ping on the road or otherinconvenient place to replace the defective tire. In fact, except in thecase of long and extended trips, there might be little if any use incarrying' an extra tire.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent, is:

1. In a pneumatic tire, the combination with a easing and an inner tubeof an arching flap interposed between the heavier basal portions of theshoe and the tube, and initiall)v pressin; r one side of the tubeinwardly before inflation and acting after inflation to impart lateralsta-bility to the tire.

L. In a pneumatic tire, the combination with a easing and an inner tube,of an inner arch having thickenedbase portions and a relatively thinnerintermediate portion and interposed betweenthe tube and the inner faceof the wall of the shoe to furnish lateral stability to the tire.

3. The combination with a. tire casing and an inner tube within thesaine, of a flap consisting in a curved piece bumped against the innertube and of substantial thickness and adapted to be more or lessflattened When the tube is inated, so as to brace between the op ositewalls of the shoe.v

4. T e combination with a easing and an inner tube of van inner archthicker at the basal edges than in the middle and having a depressionsection vtor the means for connecting the valve device to the tube andper forated to allow the passage of the valve stern. v

5. The combination in a tire of an outer easing, an inner tube, and anarch of substantial rigidity, arranged between the tube and the innersides ot' the shoe, to afford lateral stability to the tire.

In testimony whereof I hereunto atlix my signature.

WILLIAM J. P. MOORE.

